Денис Кононов@cononov12RussiaFollow BadgesProblem SolvingCPPJavaPythonSqlC languageRuby CertificationsCertificate: Ruby (Basic)VerifiedskillCertificate: Ruby (Intermediate)VerifiedskillCertificate: C (Basic)VerifiedskillCertificate: C (Intermediate)VerifiedskillCertificate: C (Advanced)VerifiedskillCertificate: SQL (Basic)VerifiedskillCertificate: SQL (Intermediate)VerifiedskillCertificate: SQL (Advanced)VerifiedskillWork Experiencecononov12 has not updated employment details yet.Educationcononov12 has not updated education details yet.